2022-06-04 17:34:49 +01:00

69 lines
1.9 KiB
PHP

<?php
/*
*
* ____ _ _ __ __ _ __ __ ____
* | _ \ ___ ___| | _____| |_| \/ (_)_ __ ___ | \/ | _ \
* | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
* | __/ (_) | (__| < __/ |_| | | | | | | | __/_____| | | | __/
* |_| \___/ \___|_|\_\___|\__|_| |_|_|_| |_|\___| |_| |_|_|
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* @author PocketMine Team
* @link http://www.pocketmine.net/
*
*
*/
declare(strict_types=1);
/**
* Noise classes used in world generation
*/
namespace pocketmine\world\generator;
use pocketmine\utils\Random;
use pocketmine\utils\Utils;
use pocketmine\world\ChunkManager;
use function preg_match;
abstract class Generator{
/**
* Converts a string world seed into an integer for use by the generator.
*/
public static function convertSeed(string $seed) : ?int{
if($seed === ""){ //empty seed should cause a random seed to be selected - can't use 0 here because 0 is a valid seed
$convertedSeed = null;
}elseif(preg_match('/^-?\d+$/', $seed) === 1){ //this avoids treating seeds like "404.4" as integer seeds
$convertedSeed = (int) $seed;
}else{
$convertedSeed = Utils::javaStringHash($seed);
}
return $convertedSeed;
}
/** @var int */
protected $seed;
protected string $preset;
/** @var Random */
protected $random;
public function __construct(int $seed, string $preset){
$this->seed = $seed;
$this->preset = $preset;
$this->random = new Random($seed);
}
abstract public function generateChunk(ChunkManager $world, int $chunkX, int $chunkZ) : void;
abstract public function populateChunk(ChunkManager $world, int $chunkX, int $chunkZ) : void;
}